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Supplemental Information on Oil and Gas Operations (Unaudited) (Narrative) (Details) $ in Millions | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2021 USD ($) MMBoe $ / bbl $ / Mcf | Dec. 31, 2020 USD ($) MMBoe | Dec. 31, 2019 USD ($) MMBoe | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Proved developed and undeveloped reserves, revisions due to prices | [1] | 155 | (78) | (28) |  |  |
Proved developed and undeveloped reserves, revisions other than price (MMBoe) |  | 43 | 55 |  |  |  |
Proved developed and undeveloped reserves, additional downward revisions other than price(MMBoe) |  | 10 | 20 | 5 |  |  |
Proved developed and undeveloped reserves, extensions and discoveries | [1] | 228 | 135 | 160 |  |  |
Proved developed and undeveloped reserves, extensions and discoveries | [1] | 663 | 7 | 6 |  |  |
Proved undeveloped reserves increased percentage |  | 91.00% |  |  |  |  |
Proved undeveloped reserves as percentage of entire proved reserves |  | 21.00% |  |  |  |  |
Proved undeveloped reserves due to drilling and development activities (MMBoe) |  | 160 |  |  |  |  |
Cost incurred related to development and conversion of proved undeveloped reserves | $ |  | $ 612 |  |  |  |  |
Average estimated future realized price per barrel of oil used to estimate future cash inflows for proved oil reserves | $ / bbl |  | 64.17 |  |  |  |  |
Average estimated future realized price per Mcf of gas used to estimate future cash inflows for proved gas reserves | $ / Mcf |  | 3.05 |  |  |  |  |
Average estimated future realized price per barrel of natural gas liquids used to estimate future cash inflows for proved NGL reserves | $ / bbl |  | 27.60 |  |  |  |  |
Future development costs | $ |  | $ 3,689 | $ 1,747 | $ 2,093 |  |  |
Future dismantlement, abandonment and rehabilitation costs | $ |  | $ 500 |  |  |  |  |
Scenario Forecast [Member] |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Future development costs | $ |  |  |  |  | $ 600 | $ 700 | $ 1,100
Maximum [Member] |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Proved developed and undeveloped reserves, revisions other than price (MMBoe) |  | 53 | 75 |  |  |  |
Delaware Basin |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Proved developed and undeveloped reserves, revisions other than price (MMBoe) |  | 23 | 40 | 6 |  |  |
Proved developed and undeveloped reserves, extensions and discoveries |  | 209 | 117 | 77 |  |  |
Proved developed and undeveloped reserves, extensions and discoveries |  | 538 |  |  |  |  |
Proved undeveloped reserves percentage |  | 85.00% |  |  |  |  |
Percentage of purchase reserves related to acquisition |  | 98.00% |  |  |  |  |
Purchased reserves related to acquisition, energy |  | 90 |  |  |  |  |
Percentage of extensions and discoveries proved undeveloped reserves |  | 92.00% |  |  |  |  |
Proved undeveloped reserves, conversion to proved developed reserves (MMBoe) |  | 107 |  |  |  |  |
Delaware Basin | Maximum [Member] |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Proved undeveloped reserves revisions other than price |  | 14 |  |  |  |  |
Delaware Basin | Minimum [Member] |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Proved undeveloped reserves revisions other than price |  | (3) |  |  |  |  |
Williston Basin |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Proved developed and undeveloped reserves, revisions other than price (MMBoe) |  | 12 |  |  |  |  |
Proved developed and undeveloped reserves, extensions and discoveries |  | 6 |  |  |  |  |
Proved developed and undeveloped reserves, extensions and discoveries |  | 125 |  |  |  |  |
STACK [Member] |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Proved developed and undeveloped reserves, revisions other than price (MMBoe) |  | 12 | 22 | 9 |  |  |
Proved developed and undeveloped reserves, extensions and discoveries |  | 8 | 8 | 37 |  |  |
Eagle Ford [Member] |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Proved developed and undeveloped reserves, extensions and discoveries |  | 3 | 5 | 18 |  |  |
Powder River Basin [Member] |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Proved developed and undeveloped reserves, extensions and discoveries |  | 2 | 5 | 28 |  |  |
Anadarko Basin | Maximum [Member] |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Proved undeveloped reserves revisions other than price |  | 6 |  |  |  |  |
Anadarko Basin | Minimum [Member] |  |  |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |  |  |
Proved undeveloped reserves revisions other than price |  | (6) |  |  |  |  |
[1] | Gas reserves are converted to Boe at the rate of six Mcf per Bbl of oil, based upon the approximate relative energy content of gas and oil. NGL reserves are converted to Boe on a one-to-one basis with oil. The conversion rates are not necessarily indicative of the relationship of oil, natural gas and NGL prices.

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